CN217386125U - Off-axis angle projector - Google Patents
Off-axis angle projector Download PDFInfo
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- CN217386125U CN217386125U CN202221347373.2U CN202221347373U CN217386125U CN 217386125 U CN217386125 U CN 217386125U CN 202221347373 U CN202221347373 U CN 202221347373U CN 217386125 U CN217386125 U CN 217386125U
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- light source
- fresnel lens
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Abstract
In an embodiment of the present application, there is provided an off-axis angle projector, comprising a projector main body, a light source assembly, a fresnel lens assembly, a lens assembly, and a plane mirror for reflecting light; the light source assembly, the Fresnel lens assembly, the plane reflector and the lens assembly are arranged in the projector main body; the Fresnel lens assembly which converges light emitted by the light source assembly into parallel light is arranged on one side of the light source assembly, and the plane reflector is arranged on one side, far away from the light source assembly, of the Fresnel lens assembly; the plane reflector and the Fresnel lens component are arranged at a central axis angle of 33 degrees, and the plane reflector and the lens component are arranged at a central axis angle of 57 degrees. Through the angle of plane mirror and lens for the projecting apparatus is the off-axis, thereby solves the problem that the projection picture is low excessively, can raise the projection picture, promotes user's experience.
Description
Technical Field
The utility model relates to a projecting apparatus field especially relates to an off-axis angle projecting apparatus.
Background
A projector, also called a projector, is a device that can project images or videos onto a curtain, and can be connected to a computer, a PC, a mobile phone, a play box, a game machine, a DV, and other multimedia devices through different interfaces, so as to play corresponding video signals. Compared with a liquid crystal television, the size of an image projected by a projector is not limited by the size of liquid crystal, and the image sharing device has a good sharing effect, so that the device is widely applied to families, offices, schools and entertainment places.
The projection picture of the projector in the prior art is too low, so that the user experience is poor, and the projection picture cannot be seen well.
SUMMERY OF THE UTILITY MODEL
In view of the above, embodiments of the present invention are proposed to provide an off-axis angle projector that overcomes or at least partially solves the above problems.
The embodiment of the utility model discloses an off-axis angle projector, which is used for a projector and comprises a projector main body, a light source component, a Fresnel lens component, a lens component and a plane reflector for reflecting light;
the light source assembly, the Fresnel lens assembly, the plane reflector and the lens assembly are arranged in the projector main body; the Fresnel lens assembly which converges light emitted by the light source assembly into parallel light is arranged on one side of the light source assembly, the plane reflector is arranged on one side, away from the light source assembly, of the Fresnel lens assembly, and the lens assembly is arranged at the position corresponding to the plane reflector;
the plane reflector and the Fresnel lens component are arranged at a central axis angle of 33 degrees, and the plane reflector and the lens component are arranged at a central axis angle of 57 degrees.
Preferably, the bottom of the light source assembly is further provided with a centrifugal blower, and an air outlet of the centrifugal blower is arranged on the same side of the light outlet of the light source assembly.
Preferably, a heat radiation fan is arranged at the top of the light source assembly, and an air inlet of the heat radiation fan is positioned at the same side as an light outlet of the light source assembly.
Preferably, a radiator is arranged at the air outlet of the cooling fan; the radiator and the cooling fan are arranged in parallel.
Preferably, the fresnel lens assembly comprises a rear fresnel lens and a second lens parallel to the rear fresnel lens;
the rear Fresnel lens is close to the light source assembly, and the front Fresnel lens is close to the plane reflector.
Preferably, the front fresnel lens and the liquid crystal screen are spaced apart by 10 mm.
Preferably, a main board is further disposed between the fresnel lens assembly and the plane reflector.
Preferably, the distance between the heat insulation glass and the liquid crystal screen is 15 mm.
Preferably, the light source assembly comprises a light tunnel and a light source arranged inside the light tunnel.
The present application specifically includes the following advantages:
in the embodiments of the present application, the light source assembly, the fresnel lens assembly, the lens assembly, and the plane mirror for reflecting light rays are used; the light source assembly, the Fresnel lens assembly, the plane reflector and the lens assembly are arranged in the projector main body; the Fresnel lens assembly which converges light emitted by the light source assembly into parallel light is arranged on one side of the light source assembly, the plane reflector is arranged on one side, away from the light source assembly, of the Fresnel lens assembly, and the lens assembly is arranged at the position corresponding to the plane reflector; the plane reflector and the Fresnel lens component are arranged at a central axis angle of 33 degrees, and the plane reflector and the lens component are arranged at a central axis angle of 57 degrees. Through the angle of plane mirror and lens for the projecting apparatus is the off-axis, thereby solves the problem that the projection picture is low excessively, can raise the projection picture, promotes user's experience.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural view of an off-axis angle projector according to the present invention;
1. a heat radiation fan; 2. a heat sink; 3. a light source assembly; 4. a centrifugal blower; 5. a Fresnel lens assembly; 51. a rear Fresnel lens; 52. heat insulating glass; 53. a liquid crystal screen; 54. a front Fresnel lens; 6. a main board; 7. a plane mirror; 8. a lens assembly.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a schematic structural diagram of an off-axis angle projector according to the present invention is shown, which specifically includes the following structure: the projector comprises a projector main body, a light source component 3, a Fresnel lens component 5, a lens component 8 and a plane reflector 7 for reflecting light; the light source assembly 3, the Fresnel lens assembly 5, the plane reflector 7 and the lens assembly 8 are arranged in the projector main body; the Fresnel lens assembly 5 which converges light emitted by the light source assembly 3 into parallel light is arranged on one side of the light source assembly 3, the plane reflector 7 is arranged on one side, far away from the light source assembly 3, of the Fresnel lens assembly 5, and the lens assembly 8 is arranged at a position corresponding to the plane reflector 7; the plane reflecting mirror 7 and the Fresnel lens component 5 are arranged at a central axis angle of 33 degrees, and the plane reflecting mirror 7 and the lens component 8 are arranged at a central axis angle of 57 degrees.
In the embodiment of the present application, the light source assembly 3, the fresnel lens assembly 5, the lens assembly 8, and the plane mirror 7 for reflecting light rays; the light source assembly 3, the Fresnel lens assembly 5, the plane reflector 7 and the lens assembly 8 are arranged in the projector main body; the Fresnel lens assembly 5 which converges light emitted by the light source assembly 3 into parallel light is arranged on one side of the light source assembly 3, the plane reflector 7 is arranged on one side, far away from the light source assembly 3, of the Fresnel lens assembly 5, and the lens assembly 8 is arranged at a position corresponding to the plane reflector 7;
the plane reflecting mirror 7 and the Fresnel lens component 5 are arranged at a central axis angle of 33 degrees, and the plane reflecting mirror 7 and the lens component 8 are arranged at a central axis angle of 57 degrees. Through plane mirror 7 and fresnel lens subassembly 5's angle for the projecting apparatus is the off-axis, thereby solves the too low problem of projection picture, can raise the projection picture, promotes user's experience.
Next, an off-axis angle projector in the present exemplary embodiment will be further described.
In an embodiment of the present application, the light source assembly 3, the fresnel lens assembly 5, the plane mirror 7, and the lens assembly 8 are disposed inside the projector main body; the Fresnel lens assembly 5 which converges light emitted by the light source assembly 3 into parallel light is arranged on one side of the light source assembly 3, the plane reflector 7 is arranged on one side, far away from the light source assembly 3, of the Fresnel lens assembly 5, and the lens assembly 8 is arranged at a position corresponding to the plane reflector 7.
As an example, the light source assembly 3 comprises a light tunnel and a light source arranged inside the light tunnel. The light source can be a light-emitting diode (LED) light source, the light flux is circular truncated cone-shaped, the light is used for gathering the LED light source, the height of the light source component 3 is 78 mm, and the interval between the heat insulation glass 52 and the liquid crystal screen 53 is 15 mm. In an embodiment of the present application, the bottom of the light source assembly 3 is further provided with a centrifugal blower 4, and an air outlet of the centrifugal blower 4 is disposed at the same side of the light outlet of the light source assembly 3. The top of the light source component 3 is provided with a cooling fan 1, and an air inlet of the cooling fan 1 is arranged at the same side as an light outlet of the light source component 3.
In a specific embodiment, the centrifugal blowers 4 are arranged in parallel along the frame of the projector, and the light source assembly 3 is arranged in the projector in an inclined manner; the heat radiation fan 1 is arranged on the top of the light source assembly 3, and is respectively arranged on two sides of the light source assembly 3 together with the centrifugal blower 4.
As an example, the wind of the centrifugal blower 4 passes through the fresnel lens assembly 5, the heat dissipation fan 1 and the heat sink 2 in sequence.
As an example, the air blown by the centrifugal blower 4 passes through the fresnel lens assembly 5 to take away the heat of the fresnel lens assembly 5, and then is taken away to the outside of the projector through the heat dissipation fan 1 to complete a cycle, so that the temperature inside the projector can be effectively reduced.
In an embodiment of the present application, a heat sink 2 is disposed at an air outlet of the heat dissipation fan 1; the radiator 2 is arranged in parallel with the radiating fan 1; wherein, radiator 2 is the cuboid, radiator 2 is inside to be equipped with a plurality of louvres to guarantee that radiator fan 1 exhaust heat energy can discharge the projecting apparatus.
In an embodiment of the present application, one side of the light source assembly 3 is provided with a fresnel lens assembly 5 for converging light emitted by the light source assembly 3 into parallel light, the fresnel lens assembly 5 is far away from one side of the light source assembly 3 is provided with a plane reflector 7, and a position corresponding to the plane reflector 7 is provided with the lens assembly 8. The plane reflecting mirror 7 and the Fresnel lens component 5 are arranged at a central axis angle of 33 degrees, and the plane reflecting mirror 7 and the lens component 8 are arranged at a central axis angle of 57 degrees.
In an embodiment of the present application, the fresnel lens assembly 5 includes a rear fresnel lens 51, a heat insulation glass 52, a liquid crystal panel 53, and a front fresnel lens 54, which are sequentially disposed; the front Fresnel lens 54, the rear Fresnel lens 51, the heat insulation glass 52 and the liquid crystal screen 53 are arranged in parallel; the rear fresnel lens 51 is close to the light source assembly 3, and the front fresnel lens 54 is close to the plane reflector 7. The front fresnel lens 54 and the liquid crystal panel 53 are spaced apart by 10 mm.
It should be noted that, most fresnel lenses, also known as screw lenses, are sheets made of polyolefin materials by injection molding, and are also made of glass, one surface of the lens is a smooth surface, and the other surface is inscribed with concentric circles from small to large, and the texture of the fresnel lenses is designed according to the requirements of light interference and interference, relative sensitivity and receiving angle.
In one embodiment, the light source assembly 3 provides that the light source assembly 3 projects light through the fresnel lens assembly 5 into parallel beams onto the plane mirror 7, where the light is reflected by the plane mirror 7 to the lens assembly 8.
In a specific embodiment, the bottom of the front fresnel lens 54 is closely attached to one end of the main board 6, and the other end of the main board 6 is provided with the plane mirror 7. A main board 6 is arranged between the Fresnel lens assembly 5 and the plane reflector 7.
In an embodiment of the present application, the plane mirror 7 and the central axis angle of the fresnel lens assembly 5 are 33 degrees, and the plane mirror 7 and the central axis angle of the lens assembly 8 are 57 degrees.
As an example, light of the light source assembly 3 passes through the fresnel lens assembly 5 to generate parallel light, and is directed to the plane reflector 7, the light emitted from the fresnel lens assembly 5 is at 33 degrees with respect to the plane reflector 7, and is reflected on the plane reflector 7 into the lens assembly 8, and the plane reflector 7 is at 57 degrees with respect to a central axis of the lens assembly 8. The distance from the liquid crystal screen 53 to the plane mirror 7 is 65 mm, and the distance from the plane mirror 7 to the lens is 68 mm.
In one embodiment, the off-axis angular projector has a volume of 248 millimeters by 180 millimeters by 147 millimeters.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
The above detailed description is made on the off-axis angle projector provided by the present invention, and the detailed examples are applied herein to explain the principles and embodiments of the present invention, and the description of the above embodiments is only used to help understand the method and core ideas of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be changes in the specific embodiments and the application range, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. An off-axis angle projector is used for a projector and is characterized by comprising a projector main body, a light source component, a Fresnel lens component, a lens component and a plane reflector for reflecting light;
the light source assembly, the Fresnel lens assembly, the plane reflector and the lens assembly are arranged in the projector main body; the Fresnel lens assembly which converges light emitted by the light source assembly into parallel light is arranged on one side of the light source assembly, the plane reflector is arranged on one side, away from the light source assembly, of the Fresnel lens assembly, and the lens assembly is arranged at the position corresponding to the plane reflector;
the plane reflector and the central axis angle of the Fresnel lens component are 33 degrees, and the plane reflector and the central axis angle of the lens component are 57 degrees.
2. The off-axis angle projector as claimed in claim 1, wherein a centrifugal blower is further disposed at the bottom of the light source assembly, and an air outlet of the centrifugal blower is disposed at the same side as the light outlet of the light source assembly.
3. The off-axis angle projector as claimed in claim 1, wherein a heat dissipation fan is disposed on the top of the light source module, and an air inlet of the heat dissipation fan is located on the same side as the light outlet of the light source module.
4. The off-axis angle projector as claimed in claim 3, wherein a heat sink is disposed at the air outlet of the heat dissipation fan; the radiator and the cooling fan are arranged in parallel.
5. The off-axis angle projector of claim 1, wherein the fresnel lens assembly comprises a rear fresnel lens, a heat insulating glass, a liquid crystal screen, and a front fresnel lens, which are arranged in sequence; the front Fresnel lens, the rear Fresnel lens, the heat insulation glass and the liquid crystal screen are arranged in parallel;
the rear Fresnel lens is close to the light source assembly, and the front Fresnel lens is close to the plane reflector.
6. The off-axis angle projector of claim 5, wherein the front Fresnel lens is spaced 10 mm from the liquid crystal panel.
7. The off-axis angle projector of claim 1, wherein a main plate is disposed between the fresnel lens assembly and the plane mirror.
8. An off-axis angle projector as defined in claim 5, wherein the insulating glass is spaced 15 mm from the liquid crystal panel.
9. The off-axis angle projector as defined in claim 1, wherein the light source assembly includes a light tunnel and a light source disposed within the light tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221347373.2U CN217386125U (en) | 2022-05-31 | 2022-05-31 | Off-axis angle projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221347373.2U CN217386125U (en) | 2022-05-31 | 2022-05-31 | Off-axis angle projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217386125U true CN217386125U (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221347373.2U Active CN217386125U (en) | 2022-05-31 | 2022-05-31 | Off-axis angle projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217386125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116047844A (en) * | 2022-12-10 | 2023-05-02 | 四川谱炬光电科技有限公司 | Off-axis system of LCD projector |
-
2022
- 2022-05-31 CN CN202221347373.2U patent/CN217386125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116047844A (en) * | 2022-12-10 | 2023-05-02 | 四川谱炬光电科技有限公司 | Off-axis system of LCD projector |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518129, 201, 2nd Floor, Building 2, Longbi Industrial Zone, No. 27 Dafa Road, Dafapu Community, Bantian Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN QILI ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 3rd Floor, Building B, Hongyi Industrial Park, No. 4010, Banxuegang Avenue, Bantian Street, Longgang District, Shenzhen, Guangdong 518129 Patentee before: SHENZHEN QILI ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |